-28.7% is the change from 230 to 164
Calculation steps:
[( 164 - 230 ) ÷ 230] x 100 = -28.7%
Formula
Percentage change = [(164 - 230) / 230] x 100
Subtract the new number by the original number
164 - 230 = -66
-66 ÷ 230 = -0.28695652173913044
-0.28695652173913044 x 100 = -28.7%